>>58850941I don't see how. Gameplay-wise, what would be the benefit of the Pokemon shrinking? Making them giant has an obvious benefit for battles, but I don't see what advantage or purpose there would be to doing the opposite. Only thing I can think of is to explore some sort of tiny caves? But seems like that would be more like just an option you choose and wait for the results like when you could send them out to do jobs in one of the previous games, not something you would really interact with. Even if for some reason you could control it, everything else in the cave would likely also be tiny so it would not feel like it was anything different (And this is Game Freak we're talking about, they would likely just go "Oh, BTW, you're tiny now" while just loading you into the area where it does not look like anything changed because everything else is the same scale). Beyond that convoluted scenario, I can't think of anything they can really use Pokemon shrinking for. There can possibly be some uses for you shrinking, but that would just make the Pokemon look giant.
Also
>>58851167 technically every pokemon has the ability to shrink already, though the faint animation and concept that they are being stored in their balls is clearly not what people who would be interested are after, clearly like Dynamax they would want the Pokemon to be out of their balls and doing something while tiny. I just can't think of a purpose of why they would.
